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1.
Int J Tuberc Lung Dis ; 16(5): 645-8, 2012 May.
Article in English | MEDLINE | ID: mdl-22410587

ABSTRACT

Trends in tuberculosis (TB) admissions over 40 years at the Infectious Diseases Clinic of Perugia University Hospital, Perugia, Italy, show that in the last decade non-Italian TB case admissions outweighed those of Italians, with a large number of cases from Eastern Europe (25.2%) and Africa (23.4%). Non-Italians tended to be younger and were generally new pulmonary TB cases, and drug resistance was also more common. Overall, the number of multidrug-resistant cases increased. Only one case occurred in a native-born Italian, and five of seven cases had newly diagnosed TB. In low TB incidence settings such as Perugia, Italy, TB prevention and control programmes for the foreign-born need to be reinforced.


Subject(s)
Antitubercular Agents/therapeutic use , Tuberculosis, Multidrug-Resistant/epidemiology , Tuberculosis, Pulmonary/epidemiology , Tuberculosis/epidemiology , Adult , Age Factors , Drug Resistance, Bacterial , Emigrants and Immigrants/statistics & numerical data , Female , Hospitalization/statistics & numerical data , Hospitals, University , Humans , Italy/epidemiology , Male , Middle Aged , Prospective Studies , Retrospective Studies , Tuberculosis/drug therapy , Tuberculosis/microbiology , Tuberculosis, Multidrug-Resistant/drug therapy , Tuberculosis, Multidrug-Resistant/microbiology , Tuberculosis, Pulmonary/drug therapy , Tuberculosis, Pulmonary/microbiology
3.
Chemioterapia ; 3(5): 278-80, 1984 Oct.
Article in English | MEDLINE | ID: mdl-6335839

ABSTRACT

We found it of interest to try to determine a microbiological parameter for the effects that sub-inhibitory doses of a chemotherapeutic agent may have on bacteria. To this end, the antibacterial activity of nalidixic acid was analyzed and our attention was directed to evidence of the production of beta-lactamase by 60 strains. The tests carried out showed that sub-inhibitory concentrations of nalidixic acid, from 2 to 64 times lower than the MIC (minimum inhibitory concentrations), were able to inhibit production of penicillinases in the 14 strains of Staphylococcus spp. tested, while only in 7 of the 21 strains of Gram-negative bacteria. Strains from our collection of beta-lactamase producing bacteria were analyzed, and our results confirmed that nalidixic acid inhibits plasmidic and chromosomic beta-lactamases.


Subject(s)
Gram-Negative Bacteria/enzymology , Gram-Positive Bacteria/enzymology , Nalidixic Acid/pharmacology , beta-Lactamases/biosynthesis , Gram-Negative Bacteria/drug effects , Gram-Positive Bacteria/drug effects
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